Thermometer attachment



0. M. G OTTESMAN ET Al.-

' 'THERMOMETER ATTACHMENT Jan. 25, 1927. 5, 69

Fiied Jan. 16. 1924 INVENTOR 0az'aa 772. GaZZesmarz Irvin Fasten/62dzmwm' ATTORNEY Patented Jan. 25, 1927.

UNITED STATES PATENT OFFICE.

OSIAS M. GOTTESMAN AND IRvIN RosRNFnLnp NEW YORK, N. Y, ASSIGNORS ToHARVEY INSTRUMENT oo., Inc,

A CORPORATION OFNEW YORK.

THERMOMETER ATTACHMENT.

Application filed January 16, 1924. Serial No. 686,539.

.Our invention relates to improvements in holders for returning themercury in clinical thermometers, and more particularly has reference toa whirling or centrifugal device which may be in the form of anattachment to be applied to the thermometer case for whirling thethermometer so as to return the mercury by centrifugal force withoutundue exertion on the part of the, patient.

In the accompanying drawings, I have illustrated in Fig. 1, a suitableform of thermometer holder or case partly broken away, showing anapplication of my attachment in folded position. Fig. 2 is a similarview at right angles showing the attachment extended in position forwhirling the case containing the thermometer. Fig. 3 is a detailed viewin perspective of the clip for detachably applying the attachment, andFig. 4 is a cross-sectional detail illustrating the application of theballs in .the spirals.

4 indicates the case provided with a cap 5, all of which somewhatresembles a fountain pen, the projection 6 being rectangular, hexagonal,or octagonal, as may be desired to prevent the holder from rolling whenplaced on a smooth surface. 7 indicates a conventional form of clinicalthermometer such as may be carried in a case of the kind described.

8 indicates a resilient clip pivotally secured to the stud 9 betweenwhich is also secured or may be formed with the clip 8, the resilientstrip 10, 11 having end depressions such as 12, 13 adapted to seatwithin the annular recesses 14, 15 in the sockets or tubes 16, 17respectively. 18, 19 indicate rods, the adjacent ends of which penetratethe stud 9, and the same are provided with spirals such as 20, 21 ofopposite pitch. 22, 23 indicate balls seated in the spirals and retainedin holes or depressions in the sleeves 17, 16 as shown.

By pressing the two handles or sockets 16, 17 in the direction of eachother, the case 4, 5 will thereby be whirled in one direction and bywithdrawing the finger pieces will be whirled in the opposite direction,thereby causing the mercury in the thermometer 7 to return to the lowerend of the thermometer, and after being used, the finger pieces andtheir rods may be folded parallel with the case as shown in Fig. 1, thusrendering the same adaptable for carrying in the pocket when desired.

There are several reasons for pivoting the attachment off centre. In thefirst place, the mercury end of the thermometer stands in the long endof the case, and the mercury is therefore returned to that end where thecentrifugal force acts more fully than it does at the short end. Thenagain, the cap of the case being shorter, the short end of theattachment is folded so as to extend at the top while the long endconforms more particularly to the long end of the holder. In order tocompensate for the difference in length of the stroke of the short endcompared with the stroke of the long end of the attachment, the spiralson the short end are closer together, thereby bringing the finger piecesor sockets together and apart simultaneously, notwithstanding thedifference in length of stroke.

Of course it will be understood that various modifications may be madein the construction and arrangement of parts without departing from thespirit of the invention as claimed.

We claim 1. A centrifugal device comprising a holder and a stud pivotedthereto, a pair of opposed spiral members secured to said stud, andsockets engaging the spirals of said members adapted when broughttogether and apart to rotate said holder, the spirals on one side beingcloser together and opposed to the spirals on the other side of saidstud.

2. A centrifugal device comprising a holder and a stud pivoted thereto,spiral members secured to said stud, and sockets v engaging the spiralsof said members adapted when brought together and apart to rotate saidholder, the spirals on one side being closer together and opposed to thespirals on the other side of said stud, and in combination therewith aresilient clip for retaining said spiral members and sockets in axialalignment with said holder.

3. A restoring device for a thermometer case comprising means forattaching said thermometer to said restoring device, a member havingspiraled portion at opposite ends pivoted to said means at a pointbetween said spirals, and finger engaging sockets engaging said spirals,whereby when said sockets are made to approach or recede, said attachingmeans is whirled in one direction and then in another, said attachingmeans comprising a spring clip.

4:. A restoring device for a thermometer case comprising means forattaching said thermometer to said restoring device, a member havingspiraled portions at opposite ends pivoted to said means at a pointbetween said spirals, and finger engaging sockets engaging said spirals,whereby when said sockets are made to approach or recede, said attachingmeans is whirlwl in one direction and then in another, said attachingmeans comprising a-spring clip, and in combination therewith a resilientholder :for retaining said spirals and sockets parallel with the axis ofsaid clip.

In testimony Whereol We hereunto allir; 20

our signatures.

OSIAS M. GOTTESMAN. IRVIN ROSENFELD.

